YouTube Shorts video specs
Updated 2026-08-15 · Risk-term list version 2026-08-15c
YouTube Shorts: 9:16, up to 60 seconds, safe area 底部 15% 避开标题条.
2 of the 3 fields below come from the official page (opened and linked on 2026-08-15); the rest are marked 🟡 experience-based. We do not invent citations.
Specs are only the entry ticket. What gets an asset rejected is the claims, and each platform words those rules differently — the last section covers this one.
The specs, item by item
The third column is the provenance of that row. “From official page” means the number is copied from one of the pages under Sources; “🟡 experience-based” means the official page does not state it and this comes from campaign experience — do not cite it as platform policy. Checked 2026-08-15.
| Field | Value | Provenance |
|---|---|---|
| 画幅 | 9:16 竖版最适配；横版素材会在 Shorts 里上下打模糊边 | from official page |
| 时长 | 视频最长可到 3 分钟，但 Shorts feed 只播前 60 秒，建议 <60 秒；行动类建议 10–30 秒 | from official page |
| 安全区 | 底部约 15% 避开标题条 —— 经验值，官方页未给百分比 | 🟡 experience-based |
1 field here has no official source (安全区). We did not invent a citation and we did not hide it — go by the platform’s current rules and the upload hints in your own back office.
How this platform reads claims
Shorts has the loosest technical constraints; the real constraint is watch-through. For shapewear that means this page is mostly permission to reuse the 9:16 TikTok cut rather than shoot again.
For the actual phrasings — which ones are high risk in this category and what to say instead — see the flagged-term list, or paste your copy into the free checker.
One shoot, two aspect ratios
Cross-platform is the structural difference from the platforms’ own tools: TikTok’s does not leave TikTok, Meta’s does not leave Meta. But the same SKU goes to TikTok Shop, Meta, Shorts, Temu and Amazon. Four of those take 9:16; Amazon Sponsored Brands video is documented as "16:9 only" with no vertical option — so it is one shoot and two aspect ratios, not one cut everywhere.
| Platform | Aspect | Max length | Safe area | Notes |
|---|---|---|---|---|
| TikTok / TikTok Shop | 9:16 | 60s | 顶部 130px、底部 480px 留白（右侧交互栏 140px） | 前 3 秒必须出核心信息；字幕默认开；AI 生成内容需自觉标注，平台亦会自动打标 |
| Meta（Reels / Feed） | 9:16 主投，另交付 1:1 备用 | 30s | 上下各留 14% 给 UI | Advantage+ 会自动裁切，关键信息务必居中；同素材建议提供静音可懂版本 |
| Temu 站内 | 1:1 与 3:4 | 30s | 四周 8% 安全边 | 商品主体必须在前 2 秒出现且占画面 40% 以上；价格标签避免直接烧录，便于改价复用 |
| Amazon（Sponsored Brands 视频） | 16:9（官方页写的是 only，没有竖版选项） | 45s | 避开右下角放文字与关键信息；不要带黑边 / 色边 / 模糊边 | 6–45 秒，官方强烈建议 ≤20 秒；视频与投放市场的语言要一致（英文市场需英文字幕或英文口播） |
| YouTube Shorts | 9:16 | 60s | 底部 15% 避开标题条 | 完播权重高，结尾留 1 秒静帧做循环感 |
The practical version: frame with horizontal headroom, then export two — a 9:16 master (key elements inside the middle 50% of the height, plus a 1:1) and a 16:9 for Amazon. Do not fake the 16:9 with bars: Amazon’s spec page explicitly says to avoid black, colour or blurred bars.
Other platforms
FAQ
When do these numbers go stale?
The platforms’ own pages change. We stamp the date we checked (2026-08-15) and the “last updated” the page states, so you can judge when to re-verify. Go by the platform’s current rules before you spend, especially for safe areas, which move with UI redesigns.
Why are some fields marked experience-based?
Because the official page genuinely does not state them. Composition safe areas are the usual case: most platforms publish technical parameters and no framing guidance. Rather than invent a source, we mark the row so you know it carries less weight.
Does composing to the tightest safe area waste frame?
It costs you some edge, and it buys you one cut that runs everywhere. For a seller with many SKUs and weekly creative refresh, reshooting costs far more than the edge.
Do AI-generated assets need a label?
On TikTok, yes — tick the disclosure in Ads Manager or add a clear disclaimer, caption or watermark yourself; undisclosed AI content that is detected gets rejected or restricted. Other platforms: go by their current rules. Worth saying: we do not make videos. This note is for when you use someone else’s generator.
Sources
- Google Ads 帮助 · YouTube Shorts 广告素材规格与最佳实践 （checked 2026-08-15）